CISCOTRAP-MIB :: tcpConnectionClose

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCOTRAP-MIBtcpConnectionClose

tcpConnectionClose

Module: CISCOTRAP-MIB

OID (symbolic): CISCOTRAP-MIB::tcpConnectionClose

OID (numeric): 1.3.6.1.4.1.9.0.1

Node type: NOTIFICATION-TYPE

Description: A tty trap signifies that a TCP connection, previously established with the sending protocol entity for the purposes of a tty session, has been terminated.

Examples

Send this trap to an SNMP manager — replace <manager> with the IP or hostname of your monitoring server (SNMPv2c):

snmptrap -v2c -c public <manager> '' CISCOTRAP-MIB::tcpConnectionClose
snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.9.0.1

Listen for incoming traps on the manager host (-f keeps it in the foreground, -Lo prints to stdout — useful for testing):

snmptrapd -f -Lo -c /dev/null authCommunity log public

Example snmptrapd log entry:

zoo11-linux.zoo [UDP: [192.168.30.111]:58002->[192.168.30.10]:162]:
  DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (250729618) 29 days, 0:28:16.18
  SNMPv2-MIB::snmpTrapOID.0 = OID: CISCOTRAP-MIB::tcpConnectionClose

Start monitoring Cisco routers, switches, and network devices generally with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCOTRAP-MIB::tcpConnectionClose OID value, configure state conditions and alerts, and monitor any Cisco routers, switches, and network devices generally from a single console.

OID Breakdown

Upper-level ancestors (7 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.9ciscoCAT2600-MIB
Numeric OIDNameModule
1.3.6.1.4.1.9.0.1tcpConnectionCloseCISCOTRAP-MIB